Weight Loss Surgery Comparison

The following information provides an overview of the differences between surgical weight loss options. Only you and your surgeon can evaluate the benefits and risks of weight loss surgery and choose the most appropriate procedure for you.

  Gastric banding Sleeve gastrectomy Gastric bypass
  Gastric banding Gastric banding Gastric banding
Procedure description The REALIZE® Adjustable Gastric Band wraps around the upper part of the stomach, dividing the stomach into a small upper pouch that holds about ½ cup of food and a larger lower stomach. The degree of band tightness affects how much food you can eat and the length of time it takes for food to
leave the stomach pouch.
During the sleeve gastrectomy procedure, a thin vertical sleeve of stomach is created using a stapling device. The sleeve is about the size of a banana. The rest of the stomach is removed. In this procedure, the surgeon creates
a small stomach pouch and attaches
a section of the small intestine directly
to the pouch. This allows food to
bypass a portion of the small intestine.
How it works to help
you lose weight
By creating a smaller stomach pouch,
the REALIZE Band limits the amount of
food that can be eaten at one time, so
you feel full sooner and stay full longer.
As you eat less food, your body will
stop storing excess calories and start
using its fat energy supply.
By creating a smaller stomach pouch,
a sleeve gastrectomy limits the amount of food that can be eaten at one time, so you feel full sooner and stay full longer.
As you eat less food, your body will
stop storing excess calories and start
using its fat supply for energy.
By creating a smaller stomach pouch, a gastric bypass limits the amount of food that can be eaten at one time, so you feel full sooner and stay full longer. By bypassing a portion of the small intestine, it also causes your body to absorb fewer calories.
As you eat less food, and absorb fewer calories, your body will stop storing excess calories and start using its fat supply for energy.
How it affects digestion Allows for normal digestion and absorption. Food passes through the digestive tract
in the usual order, allowing it to be fully
absorbed in the body.
Allows for normal digestion and
absorption. Food passes through the digestive tract in the usual order, allowing it to be fully absorbed in the body.
Changes the body’s normal digestive
process to reduce the number of calories
and nutrients that are absorbed.

Reversible

Yes No No

Total excess
body weight lost

43% 33% to 85%,
with an average of 55%
61.6%

Type 2 diabetes

47.8% resolved1
80.2% resolved or improved3
56% resolved2
37% improved2
83.8% resolved3
90.6% resolved or improved3

High blood pressure resolved

43.2%3 49%2 67.5% 3

High cholesterol resolved

78% improved3
In addition, patients in the U.S. clinical trial experienced a 22% increase in good cholesterol (HDL) 36 months after surgery1
43% resolved2 94.9% improved3

Obstructive sleep apnea resolved

94.6%3 60% resolved2 86.6%3
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Resolution statistics above reflect observations in the confines of studies; EES has no independent data to suggest permanent resolution. 
1. REALIZE Adjustable Gastric Band: Summary of safety and effectiveness data. Available at: http://www.accessdata.fda.gov/cdrh_docs/pdf7/P070009b.pdf. Accessed on November 11, 2009. 
2. EES summary of data contained in review article: Brethauer SA, Hammel JP, Schauer PR. Systematic review of sleeve gastrectomy as staging and primary bariatric procedure. Surg Obes Relat Dis. 2009;5:469-475. 
3. Buchwald H, Avidor Y, Braunwald E, et al. Bariatric surgery: a systematic review and meta-analysis. JAMA. 2004;292:1724-1737. 
4. Crémieux PY, Buchwald H, Shikora SA, Ghosh A, Yang HE, Buessing M. A study on the economic impact of bariatric surgery. Am J Manag Care. 2008;14:589-596. 
5. Cottam D, Qureshi FG, Mattar SG, et al. Laparoscopic sleeve gastrectomy as an initial weight-loss procedure for high-risk patients with morbid obesity. Surg Endosc. 2006;20:859-863. 
6. Schauer PR, Ikramuddin S, Gourash W, Ramanathan R, Luketich J. Outcomes after laparoscopic Roux-en-Y gastric bypass for morbid obesity. Ann Surg. 2000;232:515-529.